Video: Tiger Woods falls to his knees with back pain

Tiger Woods tweaked his back on this shot, his second at the 15th hole at the The Barclays.

Woods has been battling back pain all this week and has been seen stretching regularly throughout the round. Apparently this shot really hurt…

Per USA Today Sports: The shot went sailing well left of the fairway and landed in a water hazard. After spending a moment on the ground, Woods gingerly walked to the area where his shot went and was forced to take a drop, but continued playing and did not withdraw. Tiger took a bogey on the hole, but could barely bend down to pick his ball out of the cup.